X-ray marker



FIG. 1 is a perspective view of an x-ray marker showing my design;

FIG. 2 is a front view thereof;

FIG. 3 is a top side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a bottom view of thereof; and,

FIG. 7 is a back view thereof.

The broken lines in FIGS. 1 and 2 are included for the purpose of illustration a portion of the x-ray marker that forms no part of the claimed design. 

CLAIM The ornamental design for an x-ray marker, as shown and described. 